diff --git a/tests/test-org-ql.el b/tests/test-org-ql.el
index 1a01be9..9acca2d 100644
--- a/tests/test-org-ql.el
+++ b/tests/test-org-ql.el
@@ -25,6 +25,8 @@
 
 ;;;; Requirements
 
+(require 'buttercup)
+
 (require 'org-ql)
 
 ;;;; Variables